From: Bram Moolenaar <Bram@vim.org>
Date: Sun, 13 Aug 2017 13:37:58 +0000 (+0200)
Subject: patch 8.0.0925: MS-Windows GUI: channel I/O not handled right away
X-Git-Tag: v8.0.0925
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=62426e168ef29fb941d1bd91a112fa09445322a5;p=vim

patch 8.0.0925: MS-Windows GUI: channel I/O not handled right away

Problem:    MS-Windows GUI: channel I/O not handled right away.
Solution:   Don't call process_message() unless a message is available.
            (Yasuhiro Matsumoto, closes #1969)
---

diff --git a/src/gui_w32.c b/src/gui_w32.c
index 863975c7f..e94379ba7 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -2073,20 +2073,23 @@ gui_mch_wait_for_chars(int wtime)
 	did_add_timer = FALSE;
 #endif
 #ifdef MESSAGE_QUEUE
-	/* Check channel while waiting message. */
+	/* Check channel I/O while waiting for a message. */
 	for (;;)
 	{
 	    MSG msg;
 
 	    parse_queued_messages();
 
-	    if (pPeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)
-		|| MsgWaitForMultipleObjects(0, NULL, FALSE, 100, QS_ALLINPUT)
-								!= WAIT_TIMEOUT)
+	    if (pPeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
+	    {
+		process_message();
+		break;
+	    }
+	    else if (MsgWaitForMultipleObjects(0, NULL, FALSE, 100, QS_ALLINPUT)
+							       != WAIT_TIMEOUT)
 		break;
 	}
-#endif
-
+#else
 	/*
 	 * Don't use gui_mch_update() because then we will spin-lock until a
 	 * char arrives, instead we use GetMessage() to hang until an
@@ -2094,6 +2097,7 @@ gui_mch_wait_for_chars(int wtime)
 	 * returning as soon as it contains a single char -- webb
 	 */
 	process_message();
+#endif
 
 	if (input_available())
 	{
diff --git a/src/version.c b/src/version.c
index ec75b7120..67e96e615 100644
--- a/src/version.c
+++ b/src/version.c
@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    925,
 /**/
     924,
 /**/